基于子空间的MC-CDMA色散信道检测

2000 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.00TH8488) Pub Date : 2000-12-17 DOI:10.1109/ICPWC.2000.905781

Chengyang Li, S. Roy

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引用次数: 7

摘要

提出了一种基于码间干扰(ISI)信道的多载波CDMA (MC-CDMA)系统MMSE盲检测方法。利用虚载波的存在，给出了基于子空间的盲信道估计器和线性MMSE均衡器。该检测器消除了循环前缀和训练序列，具有较高的频谱效率。在降低全维子空间检测的复杂度的同时，也降低了检测的性能。提供了具有代表性的结果来显示性能复杂性的权衡。

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Subspace based detection in MC-CDMA over dispersive channel

A new blind MMSE detection for multi-carrier CDMA (MC-CDMA) over intersymbol interference (ISI) channels is proposed. The presence of virtual carriers is exploited to give a subspace based blind channel estimator followed by a linear MMSE equalizer. The proposed detector is attractive for its higher spectral efficiency, which is achieved by the elimination of cyclic prefix and training sequences. The complexity of the full dimension subspace detection can be reduced at the cost of some performance degradation. Representative results are provided to show the performance-complexity tradeoffs.

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来源期刊

2000 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.00TH8488)

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